There are provided a surgical jig (24) which is directly used during surgery to make it possible to accurately recognize a position where a recess (44, 46) is to be formed in the surface of a surgical target bone (14) of a patient; and a verification jig (34) which is directly used during surgery to make it possible to precisely verify whether or not the recess (44, 46) formed in the surface of the surgical targeted bone (14) of the patient is of a required shape.The surgical jig (24) has an inner surface (26) matching the surface shape of the surgical target bone (14) of the patient, and a penetrating opening (30, 32) formed in correspondence with a site where the recess (44, 46) is to be formed. The verification jig (34) has a protrusion (40, 42) protruding from an inner surface (36) thereof in correspondence with the recess (44, 46) to be formed.
Legal claims defining the scope of protection, as filed with the USPTO.
1. A surgical jig for use in surgery for forming a recess in a surface of a temporal bone as a surgical target bone of a patient, the recess including a main recess for accommodating a transducer of a bone-anchored hearing aid, and at least two sub-recesses in which fastening screws for fixing the transducer are received, the surgical jig having an inner surface matching a surface shape of the surgical target bone of the patient, and a penetrating opening at a site where the recess is to be formed, the penetrating opening including a main penetrating opening where the main recess is to be formed, and at least two sub-penetrating openings where the sub-recesses are to be formed.
2. The surgical jig according to claim 1 , wherein an outer surface of the surgical jig also matches the surface shape of the surgical target bone.
3. The surgical jig according to claim 1 , wherein a cylindrical ridge protruding from a circumferential edge of the penetrating opening is annexed to an outer surface of the surgical jig.
Cooperative Patent Classification codes for this invention. Click any code to explore related patents in that topic.
May 20, 2014
June 25, 2019
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